Fireproof blind or door.



Patented Nov. I9, mul.'

2 Sheets-Shea@ I.

W. R. &,R. H. KlvNNEAR.

FIBEPROUF BLIND 0R DUUR.

(Application filed Apr. 4, 1901.)

wn Nonms ruins co. worauwo., wAsmNnrDN. n. c

(No Model.)

No. $87,035.l Patented Nov. I9, 190|. w. R. & n. H. KINNEAB.

FIREPROOF BLIND 0B 000B.

` (Application led Apr. 4, 1901.) (No Model.) 2 Sheets-Sheet 2.

NTTE STATES PATENT Enron.

WILAM RAYMOND KINNEAR AND RAYMOND HENRY KINNEAR, OF

COLUMBUS, OHlO.

FIRE'PRooF BLIND oa noon.A

SPECIFICATION forming part of Letters Patent No.l 687,035, dated November 19, 1901. Application tiled April 4, 1901. Serial No. 64,1268. (No model.)

Be it known that we, WILLIAM RAYMOND KINNEAR and RAYMOND HENRY KINNEAR, citizens of the United States, residing at Oolumbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Fireproof Blinds or Doors; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to Whichvit appertains to make and use the same.

The object of this invention is to provide an improved folding door or Window especially adapted to be made iireproof and for use in warehouses or other large buildings.

The invention consists principally of adoor 'constructed in sections or leaves hinged together, so that the leaves fold upwardly, the main or principal sections being provided at their ends with centrally-arranged pins or bearings to run in guiding grooves or channels, combined With a counterbalancing or operative device to aid in folding said sections.

The invention also resides in details of construction, as hereinafter described and claimed.

Figure .l is an elevation looking toward the inner side of the door. ing the top of the construction. Fig. 3 is a view showingthe door folded up. Fig. 4 is a sectional view taken on a plane indicated by the line x so, Fig. 3. Fig. 5 is a detail of the middle pinion. Fig. 6 is a detail of the lower pinion, showing also the eye into which the cord of the counterbalancing-weight is knotted. Fig. 7 is a detail of a block sliding in the channel.

In the views, l l and l denote the sections comprising the door or'blind. The upper section la is shown to be of approximately half the size of lthe sections l.

2 denotes the channels or runways in which the pintles of the leaves or sections project. The upper section la of the door or blind is pivotally secured at the upper ends of the channels 2. The several sections are hinged so as to be foldable together with an accor- Fig. 2 is a view show-` dion fold. The sections l and l have run- 5o ners or pinions 3, that engage and move in the channels 2.

To facilitate the operation of the door or blind, We attach to an eye or projection lb at each of the opposite ends of the lowermost section a Weighted cord or chain 4, and by passing these cords or chains over pulleys 5 and 5u at the opposite upper corners of the door-frame one Weight 6 can serve for both sides of the door or blind. To close the open- 6o ings between the hinged edges of the sections and between the sections and the channels, we provide projecting flanges or lips 7, which when the door is down lie across such openings and exclude the ingress of flame. These flanges along the sides of the sections can extend from the corners not quite to the middle; otherwise the sections could not oscillatein the opening and closing movementsl of the door. Therefore to close the small 7o openings at the middle of the sides We place upon the shaft of the pin of the runners 3 a block 8, having parallel sides that slide in the channels 2 as the door is folded or opened.

.[t will be observed that by reason of the construction herein shown and described the blind or door is well balanced and is therefore easily manipulated by means of the handles 9, secured to the lower section.

In the drawings We have shown only the 8o frames of the sections of which the door or window can be constructed. When these frames are of Wood, they are of course to be covered with sheet metal or other material adapted to resist lire, or where it is unimportant that the doors be reproof the frames can be paneled of wood like ordinary doors.

What We claim, and desire to secureby Letters Patent, is-

l. A door or blind comprising verticallyge foldable sections with pinionsor runners at approximately the middle points of the ends of said sections combined with a counterbalancing or operative device to aid in folding said sections.

2. A door or blind comprising verticallyfoldable sections with pinions or runners at approximately the middle points of the ends of the principal of said sections combined with a counterbalancing or operative device to aid in folding said sections.

3. In combination with a `grooved channel or runway a blind or door composed of foldable sections, with pinions or runners to engage and move in said channel or runway, and anges projecting from the ends of said Sections adapted to lap over the opening between the sections and runways or channels, substantially as described. 4. In combination with channels or runways, a blind or door composed of hinged foldable sections having pinions or runners to engage and move in said channels or runways, of anges on the opposite sides of the ends of such sections adapted to lap over the opening between the sections and the channels or runways.

WILLIAM RAYMOND KINNEAR. RAYMOND HENRY ICINNEAR.

Witnesses:

GEORGE M. FINCKEL, SAMUEL W. LATHAM. 

